Filter inspection system

Details Filter inspection system Filter inspection system

1994-05-09

2000-08-15

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

356237, G01N 2188, G01N 21894

Patent

active

061040320

ABSTRACT:
A filter inspection system for inspecting filters comprising a support frame for supporting a substantially tubular filter having inner and outer surfaces for rotation about its axis, a source of EMR for directing radiation along one of the inner and outer surfaces of a filter, an EMR sensing unit mounted adjacent to the other of the surfaces for sensing EMR passing through the filter and generating a signal, and an indicator responsive to the signal for indicating the existence of and the location of passage of EMR through the filter.

REFERENCES:
patent: 3324633 (1967-06-01), Revell
patent: 3509352 (1970-04-01), Nash et al.
patent: 3800157 (1974-03-01), Nichols
patent: 4247204 (1981-01-01), Merlen et al.
patent: 4279508 (1981-07-01), Everroad
patent: 4302105 (1981-11-01), Sick
patent: 4323311 (1982-04-01), West et al.
patent: 5311023 (1994-05-01), Means, Jr. et al.

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